.450 Ackley Magnum Load Data

30 published .450 Ackley Magnum reloading recipes across 7 powders and 3 bullet manufacturers, with bullet weights from 300 to 520 grains and recorded velocities between 1,119 and 2,891 fps. Every load lists charge weight, velocity, COAL, primer and case where the source published it.

Always begin at the minimum charge weight and work up gradually. Never exceed maximum loads. Verify all data against a current published reloading manual before use. LoadDevelopment.com is not responsible for errors or omissions in this data.
Recipes
30
Powders
7
Bullet makers
3
Bullet weights
300–520 gr

Sample .450 Ackley Magnum loads

The first 5 of 30 recipes.

BulletPowderChargeVelocityCOALPrimer
Hornady Hornady 300grIMR IMR-303171 gr2,136 fps——
Sierra Sierra 300grIMR IMR-303189 gr2,789 fps——
Hornady Hornady 300grIMR IMR-303177 gr2,470 fps——
Hornady Hornady 300grIMR IMR-406480 gr2,351 fps——
Hornady Hornady 300grIMR IMR-406475 gr2,164 fps——

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